Unlike Windows Mobile devices, the iPhone doesn't have any built-in software for viewing and editing documents, such as Word and Excel files. However, applications are beginning to appear that help fill this void. Soonr - Your Mobile Cloud, released earlier this month, lets you view over 40 different file types on your device, including images and documents. You use Soonr's free service to upload them to Soonr's online storage, which provides you with 500 megabytes of free storage, and then use the Soonr application on your iPhone to view them. You can share your files with others and also print them.